Rapid HD31 Heavy Duty Plier Stapler Uses heavy gauge staples 1/4", 3/8" and 1/2" Rapid 73 or Bostitch STH5019 series Great for paper, corrugated, cloth, poly plastic, chipboard and more! Capacity: 70 sheets (80 gsm paper) with 1/2" staples 2.5" (65-mm) throat depth Nickel-plated design and finger stop